<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">{{this.$store.state.city}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper" v-for="item in hot" :key="item.id" @click="handleCityClick(item.name)">
                        <div class="button">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div class="area" v-for="(item,key) in cities" :key="key" :ref="key">
                <div class="title border-topbottom">{{key}}</div>
                <div class="item-list">
                    <div class="item border-bottom" @click="handleCityClick(innerItem.name)" v-for="innerItem in item" :key="innerItem.id">{{innerItem.name}}</div>
                </div>
            </div>
        </div>
    </div>
</template>
<script>
import Bscroll from 'better-scroll'
export default {
    name:'CityList',
    props:{
        hot:Array,
        cities:Object,
        letter:String
    },
    methods:{
        handleCityClick(city){
            this.$store.commit('changeCity',city)
            this.$router.push('/')
        }
    },
    mounted(){
        this.scroll = new Bscroll(this.$refs.wrapper)
    },
    watch:{
        letter(){
            if(this.letter){
                const element = this.$refs[this.letter][0]
                this.scroll.scrollToElement(element)
            }
        }
    }
}
</script>
<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .border-topbottom 
        &:before
            border-color:#ccc
    .border-topbottom 
        &:before
            border-color:#ccc
    .list 
        overflow:hidden
        position:absolute 
        top:1.58rem 
        left:0 
        right: 0
        bottom:0
    .title
        line-height:.54rem 
        background:#eee 
        padding-left:.2rem
        color:#666
        font-size:.26rem
    .button-list
        overflow:hidden
        padding:.1rem .6rem .1rem .1rem
        .button-wrapper
            float:left 
            width:33.3% 
            .button 
                text-align:center 
                margin:.1rem
                padding:.04rem 0 
                border:.02rem solid #ccc
                border-radius:.06rem
    .item-list  
        .item 
            line-height:.7rem 
            color:#666 
            padding-left:.2rem 
        
</style>